Sup guys, just did it for the first time. Need advice for next time.

(first time anal)

Hello. 25 year old male. I convinced my chubby but awesome girlfriend to try anal today. Needless to say I don't have the skills. Barely got it in ... Went limp. Eventually I pulled out and could tell she had corn on the cob last night. What is the secret. I did the phantom whack off to pretend the butt sex made me bust. But it was the hand ... Help please. Thanks.

Sounds good.