19 yr old Dave was nervous about going all the way with his 46 yr old lover Joe and wanted to take it slow, so they just did a little bottom grinding.
by John Thomas269 January 29, 2009
dry humping with only your bottoms on
"She wanted to take things slow, so we just did some Bottom Grinding for a few hours" or "She was on the rag, so Bottom Grinding was the only clean option"
by Brock Lander February 5, 2009