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Colby Agostinelli, LMFT, CST


I will be opening up in person availability in July/August for new clients (Couples-Sex Therapy & Adult Family Therapy), please reach out via email if you are interested in working together!  

Who I Am

Knowing the importance of the therapeutic relationship also means knowing the importance of what each person, whether therapist, facilitator, or supervisor, brings to the space, and what they don't. I am white, non-binary, queer, non monogamous, kinky, neurodivergent, and a former sex worker.

Outside of my time doing therapy, supervising, and training, I enjoy dancing and performing, gardening, home projects, reading (or trying to), traveling, making spreadsheets, and hanging out with my two senior dogs - a foxhound named Russell & a Cattle Dog named Bronco.​ I'm equally passionate about sexual freedom, challenging oppressive systems, and queering up the world around me in and out of my role as a therapist.

Therapy with Me

I believe we are our best when we have strong, empowered relationships with ourselves and others and therapy is no exception. I lean towards a casual, relational yet assertive and steady presence and will challenge you while holding a warm and encouraging space for you to explore and process. You can expect me to make you laugh, curse, and be very human and honest with you in session. I might even be sarcastic or reference something I learned from TikTok. 


My training is rooted in systems theory and queer, feminist theory which allows me to critically examine the various systems we all exist within rather than focus on any particular symptom or issue. I am a huge family therapy nerd and feel most influenced by systemic models such as Experiential, Structural, Bowen Family Therapy, and Internal Family Systems. 


I truly enjoy working with folks from all walks of life, and especially with couples and relationships of non traditional structures. I love guiding folks through transitions whether that be sexuality, gender, non monogamy, and exploring or processing kink dynamics.

Clinical Trainings & Consultation

As an AAMFT Approved Supervisor, I am deeply passionate about training, mentorship, and supervision. I am currently only able to offer ongoing supervision to PCST staff but I do have regular availability for clinical consultations both one-off and ongoing. I wholeheartedly support therapists who are willing to seek consultation to improve their skills/knowledge to be able to maintain their existing client relationships and am honored to support this process.  

Additionally, I offer individualized workshops for groups of therapists and other clinical disciplines looking to expand their skills and knowledge on the following topics. 

- Couples Therapy

- Sex Therapy

- Kink/BDSM

- Polyamory/Non-Monogamy

- Gender Affirming Care

I work with


Relational partners

Adult Families




Kink & BDSM

Sex Work

Fat Liberation



Current Offerings

Clinical Consultation with other professionals

Letters for Gender Affirming Surgeries 


Licensed Couples & Family Therapist


AASECT Certified Sex Therapist


AAMFT Approved Supervisor



Communications Chair, Board of Directors, American Association of Sexuality Educators, Counselors, & Therapists (AASECT)


Adjunct Instructor, La Salle University



Master of Family Therapy - Concentration in Sex Therapy, Thomas Jefferson University


Languages spoken


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