Cuddle Bone 

When the girl is reluctant to have sex with a guy but invites him to cuddle and they end up boning.

Jill told him that she just wanted to cuddle when they laid on the couch. But thirty minutes into Silver Linings Playbook they cuddle boned.

Cuddle Bone by HeyWhatsHisName March 14, 2014

cuddle boner 

A completely undesired erection one achieves whilst cuddling with your significant other.

Dude, I was just tryna snuggle wit my girl but I freakin had a cuddle boner, and now I have navy balls.

cuddle boner by Ljefeboriqua November 16, 2010