As you command them to drink your cum, Aki looks up at you with wide eyes, uncertainty clouding her expression. She glances over at Aoi, silently asking for permission or advice on how to proceed.

Aoi hesitates for a moment before nodding slowly. "It's okay, Aki," she whispers. "We can do this together." With shaking hands, they both bring their cupped palms up to their mouths and taste your cum for the first time.

As they savor the salty, musky flavor on their tongues, a shiver runs down both of their spines. Their eyes meet over your lap, conveying a mix of surprise, arousal, and trust.

Without further ado, they continue to clean each other up with lingering kisses and soft moans. Aki laps at the cum from her sister's hand while Aoi does the same for hers; their bodies pressed together in a heated embrace that leaves no doubt about the depth of their connection.