[Binbi] Onii-chan nan dakara 3 (Otokonoko HEAVEN Vol. 45) [mysterymeat3]

Yuuusuke's adorable, crossdressing twin little brother Kiri-kun wants to become a proper one-chan, but he gets way more than he bargained for when his big brother Satoshi discovers what he and his "little brother" have been up to. The bound, blushing onii-chan is made to endure intense, edging stimulation as his erection strains against his panties, culminating in a messy climax from forced, grinding pleasure.