His little sister starts sucking him without warning
He is very happy with his mobile phone, which does not get damaged if water falls on it. He thinks it is an incredible invention and all he wants is to try it, so he goes into the bathtub and invites his sister to watch some cartoons together. Obviously, they had to be naked because normal people don’t bathe with their clothes on, he just didn’t expect that his little sister starts sucking him without warning. When he notices, she is sucking his cock and he is very embarrassed to tell her not to do it, so he lets her indulge, he even lets her put it in her pussy when she feels like it.