i have gone through your query and understood your concerns. firstly if you feel attracted towards men and women both it is just your sexual orientation. it is not a disorder. the more you will try to get rid of these feelings the more they will disturb you. secondly entering the vagina is a very different feeling as compared to just rubbing it over the clitoris. your wife can best tell whether you penetrated her or not. if you wife is very sensitive you can give sufficient time in foreplay. rubbing followed by fingering and penetration should be the plan. this will solve the problem of tight muscles also. the head of the penis is always sensitive. if your penile foreskin is tight your surgeon can help. otherwise its normal to have a sensitive penile head. 40% sperm motility is not too low in my opinion you do not need any medication for it. slowly as you would be able to do intercourse properly your wife can conceive. gradually she can guide your penis into her vagina. hope this helps. for more information consult a psychiatrist online --> <link>
why do i get attracted to both men and women?