Effects typically wear off in about 4 hours. How long you stay hard during that period depends on your stimulation.
It can get hard pretty fast, just gotta think of the right things
About 4 hours
Viagra will increase blood flow to the penis, thus causing it to become erect.
It all depends whether they take Viagra or not. if they don't then id say about 15 to 20 minutes
Apart from chemicals such as viagra, stimulation would be the way to go.
Prescriptions like Viagra and Cialis can help with erectile dysfunction.
Jack's dad had taken Viagra & his penis was erect for more than 4 hours.
Right after
Viagra.
A northern erect-eared long-haired dogs is usually called a Spitz.
15 - 10 inches long and 7 inches in girth erect, 7.5 inches long flacid.
a grasshopper is supported by its erect penis so a grass hopper only eats fox gloves as a natural viagra, if a grasshopper looses its erection it can prove to be fatal
a grasshopper is supported by its erect penis so a grass hopper only eats fox gloves as a natural viagra, if a grasshopper looses its erection it can prove to be fatal
The results of testing have been inconclusive, but suggest that the clitoris would engorge, just like it makes a male's penis erect from the effects of the active ingredient sildenafil.