Yui's Sister

Yui fumed silently as her phone lit up with another picture message from her sister Wei. Yui always been the prettier of the two, lording her shapely body over her younger sister’s beanpole torso. Everything appeared to have changed once Yui left for college, however, and now every day Wei was sending her taunting text messages with pictures of her suddenly voluptuous form stretching out another piece of clothing that Yui had left at home.
“I don’t think this bikini of yours fits me, either! 😜 Wasn’t this your biggest?”
Yui bit her lip and jammed her hand down her pants, gasping as her fingers found their target. Her sister was such a bitch!