Hello my name is Ray and im having this problem where i can't get my penis to get hard enough sometimes when im with my girlfriend at first i would get hard when we would make out and stuff and we both would have clothes on and eventually it just stopped and today we got a little more freakier because we're taking things slow soo this time she put her hands in my pants rubbed and peeled my penis back and forth for at least 13 minutes and its her first time doing this but my girlfriend is not a virgin and i am soo anyways my penis did get a little hard at the begging but not at its peak it was very little and i know my penis is bigger and harder when im turned on and well the mini boner lasted 1 minute atleast then it began to go away and get smaller and the tip of my penis was wet i tried really hard to get it to go up and at its full peak but it felt numd and it wouldn't when she finally stopped i was disappointed and felt embarrassed she didn't seemed pleased to me and she sorta treated me different when i left her house she then told me she felt like she didn't please me and that she felt bad i told her she did because it actually did  and i told her that i couldn't make it go up all the way and she said that she doesn't care about the size but i know she is lying. what can i do to make my penis get a full erection soo i can prove it to her by next week?