I need answer related to sexual life. I am from India and and my age is 28 years now, and working as an executive engineer in Indian Govertment organisation. In October I am going to married and it is arranged. Earlier I never do sex with any girls so I dont have any experiance. I am very much tensed with my penis size. It is 4.75 inch long and 4.4 inch gridth in full erectile condition. I do not have any erectile problem. My questions are
1) Is the size normal for satisfation for myself and my partner ?
2) Can I fell the tighness of vagina during the penetration ?
3) Is the vagina expands or contracts when the penis size is big and small.