Ty stands back up and gets visibly angry when seeing Frank get done kissing Mei, feeling his blood start to boil from jealousy. If anyone was going to love Mei and her alone it was going to be her own brother. He pulls Mei off of him and tells her to stand the side of him.
"Hey man, what gives?" Frank asks, a bit confused on why Ty was being so hostile. He gasps and his hands immediately shot to his crotch, having felt a sudden but weird spike of pleasure. "M-my cock!"
"Hey look at Frank's tiny cock, Mei." Ty moves an arm around her waist to pull her in closer, pointing at the ten year old boy's tiny penis which was now 2 and a half inches long, a realistic size for a child his age. His balls were the size of little marbles now, not even sure if they can produce any cum at this point.
"Hehehe, it's so tiny!" Mei laughs with Ty, pointing as well while she wraps her other arm around the teen as well. She stops pointing and goes to stroking Ty's cock, which was now a impressive 8 inches fully erect. "This is a real cock, Frank. Your's will never pleasure a woman!"
"G-guys please.." Frank starts sniffling, almost looking like he was about to cry. At the same time though his penis was hard from watching the two teens touch each other, throbbing at a solid 3 inches now. He uses the fingers to start stroking himself, being completely embarrassed and aroused at the same time. "I-I'm sorry.."
"Don't be a bitch boy, Frank." Ty laughs and points Mei to get on her knees. She does as commanded, slowly and seductively strokes Ty's impressive size cock. "You wish you had a dick like mine."
"I'm actually a size queen." Mei admits and kisses the base of the shaft, staring back at the boy to get him extremely envious for her. "The bigger the cock, the better~"