Take vitamin e and zinc
lots of proteins (penises love that!)
massage gently with warm water in shower.
Rub lotion on it to make it glisten

besides these things, just a lot of tender loving care from the female of the species....

fish oil

olives

dates

milk

in ur daily diet i'm a male 26 and defenitly a good sexy girl making it pumped up and working it maximum to get maximum mean girl should stimulate penis every moment keep it hot if she want to enjoy best thing is suck no cream nothing just a good suck can make penis worth enjoying it gets hard on stimulation wen u think male is about to ejaculate press penis under its dick stop its ejaculation and again start enjoying