I need lots of opinions of my bf feeling me up! helpp!?

okk so my bf and i have been going out for a few months now. we are both 16 btw. the furthest we have gone is made out and i'm getting a feeling that he's gonna feel me up soon and vice versa. can someone tell me how this happens like while making out? what it feels like? prettty much as much detail as you can! thanks!