A girl that I went to school with recently approached me about starting a fuck buddy-type situation; the only problem is that I'm not attracted to her. She's talked about all types of kinky shit that she'd like to try (things that I don't have much experience with), and I'm wondering if it'd be a good way for me to get my wings back and/or try something new.

See, I recently beat leukemia and as a result of that my sexual self-image isn't that great right now. I lost basically all of my muscle and a ton of weight, haven't been around people much for the past few years, haven't had sex since I was healthy, and have shit stamina. I'm comfortable with myself mentally, and know that there's a lot about me to be attracted to, but I'm still having trouble with the physical side of things. Of course I'm currently working towards regaining my physique.

The main reason I posted here is to hear from people who've been in this type of situation before. Do you even think going through with this will help with my self-image? Should I be letting her know about my concerns, or keep them to myself (I'm guessing the latter)? I know that I've slept with unattractive girls in the past, and later regretted it, but I feel like this time is different...anybody with relevant experience?

Thanks!