A favour for a neighbour confession

A few years back i was approached by my neighbours and was asked if i could help keep an eye on a older relative living with them because they were going away for a week. Id known them for a while and would consider them friends. The husband of the couple had his dad living with them due to him loosing his wife. I said this was no problem because i like to be helpful where possible. So, my duties were to help with cook meals and help and anything else needed. I used to go round 3 times a day, morning evening and night. So my last visit late evening i used to help clive getting in and out the bath so he didnt slip. Little did i know, this was his favourite time of day. He used to pretend to be more incapable then he actually was just so i could hold him and help him out. I noticed that even though he was old he still got a pretty good erection and he loved showing it to me. I certainly noticed it but didnt react. So every evening was the same and clive seemed to keep pushing a little further each time testing my reaction. He was a loverly old man but a bit of a pervert. Towards the end of the week one evening i was sat beside the bath whilst he was bathing. He kindly asked if id help wash him, i knew he was able to do it himself as id been watching him do it all week. Clive was old and harmless so i obliged. I started by washing his neck and back using my bare hand and bar of soap, i worked my way round to his chest and stomache, i knew what he was doing but i acted dumb and contined. I felt sorry for the old man. I worked my way from his feel and up his legs amd then behold. The big old man erection sticking out the water. Id say it was about 6" but it was very strong and curved up towards his belly button. I was secretly impressed and slightly aroused. I worked up to his inner thigh and then balls acting like i didnt notice the big hard on. I could tell he was loving it. I lathered up my hand, dropped the soap and started cleaning his old strong shaft. I couldnt believe how hard it was. Clive muttered under his breath " i havnt been touched like this for years". I made the decision in my mind to please the old boy. I went to work cleaning him cock and balls top to bottom. Pulling back his foreskin and cleaning his head. I basically started wanking him off. I payed special attention to his cock and balls till squeeky clean then rinsed him off. He was still very erect andwhat i had done felt wrong but right. I though "fuck it" and lent over and sucked him of. Sucking his old hard cock for maybe 2 mins and to my surprise, he let out an explosion of cum. He did it in my mouth without warning the cheeky man. I had mo choice but to heep sucking him till he finished. After another clean up i left and reflected on my terrible actions. The next morning was awkward but i lretended like it didnt happen. After his son and sons wife returned they all thanked me amd everything went back to normal. I still see clive and he just smiles at me.