GDTM-054 【Special Feature】The only friend of the shut-in me is my kind-hearted sister! My sister's fully exposed, bra-less loungewear look is way too stimulating! And if you look closely, her nipples are clearly visible...

My friends always make fun of me, and my parents have somewhat given up on me too. My only ally is my sister! I really love my kind older sister! Initially, I didn't intend to look at her with lecherous eyes, but her breasts are just so big! Her nipples are blatantly erect, and my gaze was glued to them! Before I knew it, I was fully erect! Of course, there was no way to hide it, and I got caught. To save me from embarrassment, she gently reached for my dick and stroked it for me.