Yes, that's seual abuse, and the ony reason it didn't go any further is probably because you were showing obvious resistance and also that it came to light. If you'd have 'gone along with it', ( hate that term but don't know another way to put it,) it's hard to believe it wouldnt have gone any further. Most people who initiate abuse take it as far as they can get away with. That has been my experience. I resisted when they went near my err private area when they were doing a 'game' and the game wasnt played again. I didn't know that it was a form of abuse unti really recently.
Love to you xxxx