Context: Kaidou Shun 海藤瞬 says a thing that (depraved) dating couples do.
hada to hada ga fure-au... sono... tee φ tsunagu-n-dayo!! iwasen-na! 肌と肌が触れ合う・・・その・・・手ぇ繋ぐんだよ!!言わせんな! When skin and skin touch... [you know]... to hold hands!! Don't make [me] say it!
fureru 触れる To touch. To make contact, deliberately or by accident.
au 合う To meet. To join together.
fure-au 触れ合う For two things to touch each other, in this case, for one's skin to touch someone else's skin and vice-versa.