He hesitated but eventually removed it to expose his genitals.He had a medium sized cock but to my surprise, his balls were huge in size, I always had a fetish for balls and this turned me on.I went on to grab his hanging left ball to which he flinched and got an erection.I explained to him that it was natural and went on to explain about the role of his balls and his cock in sex.I was slowly massaging his set of balls and even before I laid my hands on his cock he came hard on my t shirt.He apologized to me for cumming on me and I said it was alright.I removed my semen stained shirt in front of the boys as they looked in awe to expose my tits which gave raj an erection which he tried to hide from me.I went to calm down Raj and made him unzip his pants and we went on to the female reproductive parts chapter.I asked each one of them to grab my tit and explore it
