New interest

Ever since my gift fisted me a month or so ago. I have been fascinated by the whole issue. Id sort of fisted myself before but never very often and it was always really tight and a little bit uncomfortable, if very horny and arousing. I've watched some horny vids today that really made me wet. The only problem I have is that I'm worried that if I make this a regular occurrence will it fuck me up for normal penetrative sex - with a cock I mean. I would be devastated if it meant I ended up with a pussy like a bucket that would spoil normal heterosexual sex for both/either me and the guy concerned. Advice and experiences would be gratefully received. Thank Jay xx