Recentally my bf seems to loose his erection when we put on a condom and its not so easy to bring back. i was thinking it may be because he/we got used to not using condoms. would a biger size help? or a different brand? is this a common problem?
Can be pretty common, stopping to put it on is usually the cause. You guys may experiment with other styles and sizes, just like clothes, they need to fit correctly in order to be comfortable.