(forget Ameiko's check, re-posted with it)
Zoren paused his thrusting when he saw Chiyo spin around, leaving just the throbbing, thick head of his shaft inside Ameiko's pussy - which was stretched open as far as it could be right now. He grinned as he saw the two cunts line up, and he said, "Oh, the times I wish I had figured out how to grow a second cock..." Ameiko gasped a deep and pleasured breath when her older sister removed her crotch from her face, and used the few seconds to lick Chiyo's juices off of her lips, before gasping when she felt Chiyo's lips touch her breasts.
His mouth a wide grin, Zoren withdrew from Ameiko, and then plunged his hardness into Chiyo. He thrusts twice, making sure to hilt his cock inside her tight hole, before sliding out and doing the same to Ameiko. He continues to repeat this, fucking their cunts twice and then switching to the other one. "You two...are definitely sisters..." he moaned as his cock throbbed harder out against their walls.
(Chiyo's Prowess Check: 1d20+11-2+6: 23 [1d20=8], Zoren attempts a fort save to resist climaxing (1d20+7: 26 [1d20=19]) and succeeds)
(Ameiko's Prowess Check: 1d20+12-2+6: 19 [1d20=3], Zoren attempts a fort save to resist climaxing (1d20+7: 22 [1d20=15]) and succeeds)
(Zoren's Prowess Check vs Chiyo: 1d20+11-2+4-4 (multiple partners): 29 [1d20=20], which will send Chiyo to Climax)
(Zoren's Prowess Check vs Ameiko: 1d20+11-2+4-4 (multiple partners): 21 [1d20=12], which will send Ameiko to Climax)
(Chiyo takes 1 subdual damage)
(Ameiko makes the save and takes 1 subdual damage)