ladies, i could use some advice or experience here?? Current partner has complained of discomfort or even pain from my penis. Not due to even being overtly rough, or what have you, but more b/c of length i guess.. She complains of nausea basically, and the sensation of my head banging against her uterus while thrusting. I hope i'm not actually doing something technically bad here and tis more a size issue.. I struggle with this even in a less invasive position like girl on top 
Having a big cock is great and all, but the last thing i want is for my girl's uterus to be in pain from it
maybe all girth and no length is the perfect cock afterall!
Having a big cock is great and all, but the last thing i want is for my girl's uterus to be in pain from it