They start going at it..

Lulu started off on Rikku, rubbing her already wet clit, and taking Rikku's breast in her hand. Rikku threw herself forward right on to Lulu's hand. She screamed with pleasure at penetration. Rikku knew she couldn't stand that much longer. She got up.

"Already wet, little one," Lulu said, licking the hand that was in Rikku.

"I've got a suprise for you," Rikku said, bending over, looking in a box. She kept herself turned away. She tied something behind her back and turned around. Rikku had pulled out a strap-on, a huge one at that...

"You're mine now, slut..." Rikku said as she pressed a button. It started to vibrate. She grabs Lulu by the waist and throws her down in the doggy-style position. When Rikku sees Lulu's ass and clit trembling, she can't make up her mind which one to tear open with the vibrating strap-on.