They fight over it.

You feel a pause in the slapping, then they start to wrestle. You bend over and feel a poke and then withdrawal as they joust.

“Come on! Let me! You can get next!” Celine whines.

“I did it first, so you get next! We share!” She gets her head into your outer ring.

“I’m hornier!!” Celine dives in after her, to push her out of the way. She catches her flared ridge on your outer ring.

The two women, side by side, jockey for the full penetration.