My friend wants me to take his V-card

I've know this guy for about the same time as my Ex. He is a mutual friend of ours, and he's one of the few people that know that my ex and I aren't together anymore. He has never tried to come between us while we were together. My ex an I broke up 3 months ago and have remained best friends. Our friend is a very shy guy, I would basically call him a Neet I'm almost 100% sure that am one of the only girls aside from his mother and sister that speaks with him. While he is a nice guy and I don't want to hurt him I am still in my heart of hearts in love with my ex and sex to me is very important and personal as I was sexually assaulted at 14 I have been so scared and mindful of the people I am willing to sleep with. As this point I have only had sex with my Ex who is aware of my trauma. Our friend is very kind but I fear that trying to go past my trauma to help him I am too scared of having a panic attack and scaring him and causing him to sink further into his social anxiety, or him becoming attached to me and ruining a friendship. I don't know what to do or how to explain my feelings in simpler terms.