After 11 years' marriage I am having a bit of difficulty sex-wise. Since the birth of our two children my wife has...ahem...rather a larger vaginal passage than she did when we first got together. Combine that with my small penis (4 inches long, 3.5 inches wide) and I get very unsatisfying sensations during intercourse. I am not overwight, infact quite skinny, I'm 38 years old and fit. I have never brought her to orgasm during straight intercourse - only through fingers and cunnilingus. Anyone got any good positions that'll help me? We tend to be fairly unadventurous - Saturday night, in the dark, missionary position sex only! Anal is no-go unfortunately! Tips from any other guys would be appreciated - I'm very in love with my wife, who claims she's very happy with our sexlife - she has 3-4 orgasms per session. When I've tried to discuss it though she thinks I'm criticising her physical defects and is very touchy. We were both virgins so I don't think she realises that I'm smaller than most guys and I feel embarrassed discussing my size with her. Any advice would be appreciated.