Mar Kaempffer, LMFTA, M.Ed

Relational Sex + Trauma Therapy for Individuals, Couples, Polycules, and Families in Seattle

nonbinary person smiles, with dimples showing. They have purple framed glasses and long blue hair.

Welcome! I’m Mar Kaempffer (they/them), a relational sex and trauma therapist at One Connection Healthcare.

I work with people who are seeking a new way of relating to themselves and others—one rooted in self-compassion, connection, repair, and agency.

I strive to co-create a felt sense of safety where clients can explore their identities, stories, relationships, and patterns with curiosity, new perspectives, and practical skills.

Mar currently provides virtual therapy for clients located in Washington State and is accepting new clients.

About Mar

Hi, I’m Mar Kaempffer, LMFTA, M.Ed (they/them). I primarily work with couples, polycules and ethically non-monogamous relationship structures, teens and adult children with their families, and individuals navigating trauma, sex, sexuality, gender, and identity exploration.

I especially enjoy supporting people with historically and intentionally marginalized identities within queer and trans communities, as well as neurodivergent and chronically ill/disabled individuals. I also work with people in larger bodies navigating disordered eating and body liberation work.

Many of the people I work with are looking for more than symptom management alone. They are seeking deeper understanding, more connected relationships, greater self-trust, and support in building lives that feel more aligned, sustainable, and authentic.

People often get the most out of therapy with me when they appreciate a balance of gentle directness, collaboration, curiosity, and laughter in the therapy room.

My Approach to Therapy

  • We are deeply affected by our relationships with others and by the systems we exist within. The multiple layers of systems we participate in shape our thoughts, beliefs, emotions, relationships, and behaviors.

    Fundamentally, many of the “symptoms” people experience—anxiety, depression, coping strategies, disconnection, shame, and trauma responses—develop as natural consequences of living within white supremacist, patriarchal, colonialist, and capitalist systems. Humans were not made to live this way, and we do not have to heal in isolation.

  • My work is grounded in a non-pathologizing, consent-based, and holistic approach to therapy. I believe healing involves restoring agency, building caring and supportive community, learning repair, creating new narratives, and developing more balanced relationships with ourselves and others.

    I intentionally work alongside clients to co-create informed and collaborative decisions around diagnosis, assessment, and treatment planning. While insurance may dictate parts of the structure of therapy, I work to disrupt harmful power dynamics within mental healthcare as much as possible.

  • Research consistently shows that safety, trust, and security within the therapeutic relationship can be healing in themselves. Because of this, I am highly intentional and attuned in my work with clients.

    My approach to therapy is warm, client-centered, relational, creative, evidence-based, and collaborative. I also draw heavily from my background in education, helping clients understand the work we are doing within a larger relational, systemic, and cultural context.

    I deeply value collaboration and frequently work alongside other clinicians and professionals to support thoughtful, well-rounded care.

What Working Together Looks Like

  • Our work together begins with a free 20-minute consultation where we can explore whether we feel like a mutual fit.

    From there, we move into an intake process that typically lasts between 1–3 sessions, depending on your needs, goals, and the complexity of your story.

  • Individual sessions are 55 minutes long.

    Relational sessions involving two or more people are typically 85 minutes long unless otherwise requested. I intentionally offer longer relational sessions to allow space for deeper work, communication, and repair.

  • I

doorway into doctor's office. There is a window in the background overlooking seattle's mountains. two chairs are both positioned in front of exam table and facing a desk. The room is bright with natural light.

My Values In Care

I believe therapy should be collaborative, transparent, and rooted in consent.

If a client would benefit from a higher level of care, more specialized support, or additional services outside my scope, I will collaborate with providers and make referrals when appropriate.

Therapy frequency, duration, and goals are always collaborative, client-dependent, insurance-dependent, and open to adjustment as needs evolve over time.

Who I Work With

*Please note that I do not with with children under the age of 13.

  • I work with:

    • Couples

    • Ethically non-monogamous relationships and polycules

    • Families, including teen/adult child-parent relationships and siblings

    • Friends and intentional communities

    • Neurodivergent relationships

    • Queer and trans relationships

    • Kinky relationships

  • Areas of support include:

    • Gender and sexuality exploration

    • Kink/BDSM

    • Consent and communication

    • Sex work

    • Body liberation, pleasure, and self-love

    • Sexual exploration

    • Sex and disability/chronic illness

    • Sex and neurodivergence

    • Sex and body transitions (HRT, menopause, surgery, weight fluctuations, etc.)

    • Desire and arousal discrepancies

    • Recovery from purity culture and sexual shame

    • Out of Control Sexual Behavior (OCSB) / “Porn or Sex Addiction”

    • Harmful masculinity

  • I work with individuals and relationships navigating:

    • Complex trauma

    • Chronic trauma

    • Childhood trauma

    • Intergenerational trauma

    • Systemic trauma

    • Religious trauma and healing from high-control groups/cults

    • Sexual trauma, abuse, and assault

    • Domestic violence/intimate partner violence (IPV)

    • Self-harm and suicidality

  • I also support clients navigating:

    • Eating disorders and disordered eating, particularly in larger bodies

    • Neurodiversity

    • Chronic illness and disability

    • Relationship repair

    • Identity exploration

    • Shame and self-worth

    • Communication and boundaries

Edcuation, Training, and Clinical Experience

I graduated in 2025 with a Master’s degree in Couple and Family Therapy from Antioch University Seattle, where I also earned a certificate in Sex Therapy. I am currently pursuing AASECT certification.

My clinical training includes trauma-focused care, Gottman Couples Therapy Level 1 training, and Washington State’s 60-hour Domestic Violence Intervention Treatment (DVIT) training.

I completed my year-long internship at Hope Development Practice, where I gained experience working with a wide variety of clients, identities, and relational systems.

Prior to becoming a therapist, I earned a Master’s degree in Education from the University of Washington Seattle in 2020, as well as a certificate in Education for Environment and Community through IslandWood. I also completed significant coursework in feminist thought and pedagogy.

My academic background, professional experiences, and lived experiences all inform the way I show up as a therapist—with intentionality, patience, curiosity, compassion, clear communication, and care.

What Keeps Me Joyful

Outside of therapy, you can usually find me with my two dogs—Bigsby, a Great Dane/Mastiff mix, and Kodiak, a Yellow Lab—most likely somewhere near the water.

I fill my cup by being outside, gardening, swimming, spending time with friends, attending community events, playing board games, and working on crafting projects. I’m known for seeing something somewhere and immediately saying, “I can do that,” before attempting to make it myself.

I also love connecting with other neurodivergent people around special interests, creativity, curiosity, and learning new things.

Work with Mar |

Work with Mar |

Let’s See If We’re a Good Fit

Finding a therapist you feel safe, connected, and collaborative with matters.

If you are looking for relational, consent-based therapy rooted in compassion, curiosity, repair, and authenticity, I would love to connect with you.

Whether you are navigating trauma, relationships, identity exploration, neurodivergence, sexuality, or systemic harm, therapy can become a space to build new understanding, skills, connection, and possibilities.

doorway into doctor's office. There is a window in the background overlooking seattle's mountains. two chairs are both positioned in front of exam table and facing a desk. The room is bright with natural light.