Shift to her ass

You pull out of Fiona's pussy and seeing your cock glisten in the faint moonlight. You nudge it and push against her tight rosebud asshole. Fiona lifts her head from Flora's cunt, and Flora sucks hard on Fi's clit. All the stimulation brings a guttural shout from Fiona's throat. Your cock head pops inside her ass.

"Oh, God. Oh, God. Go slow. Fuck, it hurts, but so good! Unh!" Fiona cries out, panting hard at your thick intrusion.

You slowly push and pull on her hips, pressing gently forward. Then you can feel something moving on the other side of the flesh inside Fiona's ass. You look down and see that Flora has her fingers in Fi's cunt, pumping them in and out rapidly. Suddenly, it gets much easier to move inside Fiona's nether hole. Flora's attentions must be relaxing her. You start thrusting a little faster in and out of her.

Fi has stopped licking Flora's pussy, concentrating on the intense feeling of a cock in her ass and Flora's fingers in her cunt. Her tightness is bringing you quickly to release, so you're going slow to make it last and to keep it good for the penetrated sister.

You hear a loud sucking sound from Flora, and Fi's sensuous body stiffens. She makes a rising shout that ends in a shriek as she comes. Her sphincter squeezes you tight, and you can barely thrust anymore. The pressure is incredible and you growl your pleasure as you squirt Fi full of your sperm. You keep jerking as you both climax until you both go limp and collapse to one side. You are still deeply embedded inside Fi's ass.

You are puffing like the Big Bad Wolf.

"That was awesome, guys!" Flora says as she turns around and snuggles into Fi and wraps her arm around you as well. "Oh, my God! That was so sexy and nasty!"

The three of you just rest for a bit, recovering from your escapades.