I used to work in a nursing home and as part of my job i had to bathe some of the elderly residents ranging from ages 70 to 90 yrs old , there was this one old guy who whenever i bathed him used to get semi erection whilst i was washing him down and i secretly liked the feeling of his cock in my hands . Now he was 82 years old but quite a sprightly old chap for his age but a little senile , one morning while giving him his bath as usual he got an erection whilst soaping him down , only this time it was a full on raging hardon , the feeling of this in my hand sent me in a spin and i could feel myself getting aroused by the sheer size of this thing . Firstly i am a profesional at my job and something like this wouldn't normally phase me but this morning was different . There was alway 2 staff on duty and i was upstairs bathing this chap whilst the other member of staff was downstairs doing her duties . So washing the old guy i had full privacy. His cock was so hard and the heat coming off it felt great in my hand . I looked at him whilst he sat in his bathing chair and he didn't seem bothered at all that i had his cock firmly in my grasp . Slowly i pulled his foreskin back to reveal a huge shiny helmet , my breath was staring to shorten now and i could feel my panties getting moist . Bacwards and forawards i pulled his foreskin and by now could see pre-cum starting to form , all the wile he was oblivious to what i was doing . We usually have a time limit to stick to whilst bathing ect so time was ticking on and with haste i quickend my pace on wanking him , it seemed to go on for an age but then all of a sudden he started to tense and gave out a small grunt . I knew he was near to cumming so i leaned over the bath and place my mouth around his cock whilst still wanking him . God i felt so bad but coudn't stop myself from what i was doing . No sooner had i placed my mouth over his cock his body started to shudder and his helmet swelled as it pumped out a rather gloopy and lumpy amount of cum . This i knew i had to swallow even though it made me wretch and the deed was done . I felt so bad afterwards but also happy that this was probably the fist time that he had cum in years . I have never ever done anything like that since but often think about it while masturbating.