Another question, when the female chases the male and ... fondles? him, lol, he will retaliate by pinning her down and very gently nipping her it looks like, I was observing them for a while, and she did the whole "Squeak squeak you dominate me squeak squeak" thing...

Didn't see any definite mounting though he did get behind her a couple times ...

Is this foreplay or are they just playing dominatrix?