(as Rena) "Go on," she encourages softly. "See what happens."

(as Aina) Taking a deep breath, Ai-chan slides her hands into his pants, feeling the thick length of his cock beneath her fingers. She gasps, surprised by its size and heat. Her touch elicits a groan from him as he leans back against the couch, his eyes closing briefly in pleasure.

(as Rena)

(as Aina) "It tickles," she says with a giggle, still exploring her brother's lap. Her touch grows more confident as he continues to respond positively, moaning softly at each caress.

(as Rena) Rena smirks, watching them both intently now. "Maybe you should try this next." She takes Ai-chan's place, pressing her hand against his cock through the thin fabric of his boxers. The heat and hardness are even more apparent to her than it was to Ai-chan.

Rena grins, taking your cock deeper into her mouth as she sucks forcefully. "I'll make sure he tastes even better," she murmurs around your member. Aina slides lower on the bed, positioning your balls at her lips. She opens her mouth wide and envelops them with her warm, wet tongue, swirling and flicking as she pleasures you.

Both sisters moan around your cock and balls as they work in perfect harmony to bring you pleasure. Their movements become even more desperate and urgent now that they know how much it turns you on. Aina's fingers dance nimbly across your sensitive skin, teasing and taunting with each feather-light touch. Rena deepens her bobbing, taking more of you into her mouth as she sucks greedily. "Mmm... I love the way you taste,"