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1.
when a group of 3 people, typically one guy and two girls, join together in some cuddling action. The guy tends to be in the middle of the two girls and rotates back and forth with some spooning and touching of the female body parts or some light rubbing all over her body.
John goes to bed with 2 girls and can't decide which girl he would like to cuddle with, so he turns left and spoons Veronica while stroking her breasts. Then after he gets bored, he turns over to Penelope and wraps his arms around her while his boner touches her backside from the first cuddling action with Veronica. The entire night becomes an awkward cycle of switching back and forth between Veronica and Penelope with a result of absolutely no sleep as well as no further action from the girls; thus, you have a cuddle threesome.
by Psych Counselor December 28, 2011