Fuck that ,there are no rules when it comes to love making
i find the best sexual positions are as follows(in no particular order)
Spoon style,you lay behind her while your both on your sides put one leg in between hers and then insert your penis into the vagina and there ya go
a seated kind of position,kind of in a hug position with the guys legs open and the girls around his waist and it all falls into place
A classic is Girl on top facing the guy or back to the guy either way,but guys remember you cant always make the girl go on top
another is kind of like doggy style but your on a bed on your knees and you lift one of the girls legs up and hit it from behind but at a angle
these seem to be the best iev found