Fruit roll up vs. grapfruit BJ 🍆

Alright imma sound hungry asf but just wanting to switch up my head game and I saw a post and subsequently watched porn where a woman put a fruit roll up on her mans penis and the way she licked and sucked it off looked like it felt so good so I wanna try it but wondering if there’s any risks involved. I’ve also heard of the grapefruit technique and saw another woman post about it on here recently so wondering which one would be better to try first.