GF wants to peg me

My girlfriend keeps asking to peg me and I genuinely do not want to do it but she keeps asking and says its because shes never done it wants to try i change the subject everytime but she thinks I’ll really like it but idk whos done it what is everyones thoughts should i do it???

Update… I appreciate all the responses i shouldve said ive had fingers in the ass before I’ve experimented with anal before but a STRAP ON is crazyy