The younger brother's penis was secretly touched while he was in the bath and dazed, but when it was found out, they were pressured to let their bodies be touched in return. Not just the breasts, but also wanting to touch the vagina, and wanting the penis to be stroked and licked... Finally, the two decided that "inserting only the tip 3 cm would not count as sex," and began repeatedly having glans sex. However, even with just the tip, the feeling of the penis going in and out of the vagina was incredibly pleasurable, and they gradually wanted to insert it deeper... The siblings, who were extremely interested in erotic things, lived a life on the brink of penetration！！
