depending on how horny and turned on i am... it varies from a few minutes to more than half an hour... ususally like 10, 20 min, i think.

and ussually when i do it i read erotic stories.. and that turns me on. and cybering/camming/phonesex/pics/pornos dont really turn on that much.

and for multiple, ususally the second is easier.. but ususally i am satisfied already with the first so i dont do it often