Cunnilingus withe somone young

F late 40s. I live alone and my 18 yo nephew visits me on weekend to help my household chores and shopping. One day he, in only his boxer on, was cleaning my kitchen cupboard etc and I was nearby to help him. I saw him sweating working climbing on the folding ladder. I guess he had a good look of my deep cleavage from up there and I noticed his hard-on quite clearly from the foot of the ladder. However, I helped him to get down and took him to a kitchen chair to sit, got a towel to dry his body standing closely (intentionally) in front him and when I hit his chest he got startled - he had a pair of very sensitive nips. While doing this my ample boobs brushed his face couple of times! Suddenly he wrapped his hands around my waist and kissed my tummy. I held him there and lowered my boobs to his face. He almost tore down my blouse and stared to massage and suck on my boobs. I was mesmerized by the smell of his body and we moved to the bathroom. We had shower together, got naked, kissed and sucked each other. I was without sex for quite sometime and found this a good opportunity to get this stud to satisfy my/our urge for orgasms. We did mutual masturbation first, then fucked like wild dogs.
It is now our weekly act and I taught him a lot about sex. Hope his gf will be benefited when he has one!!