Greetings ladies,

I am a man but i wanted a womans point of view of this topic. My wife and i have been married for over 2 years. When we have sex she orgasms alot! To the point that sometimes sex with foreplay barely goes 20 minutes. At times she has very very strong orgasms but can only handle about 3 then she is worn out and want to go to sleep. The problem is sometimes i want to go a little longer but i don't want to be disrespectful to her needs and i don't want to burden her with sex. Sometimes she can handle a little more, (she took 6 on valentines day)
Any suggestions on how i can have a little bit longer sessions without wearing her out. Thanks