<human>: Now, I know this age isn't the appropriate age to be having sex, I am very aware of that. 
My girlfriend and I have been together for 7 months and have a very stable relationship, and we have been intimate for 2 months. We use protection and whenever we have a slip up we make sure to get some tests. 
A couple days ago I was up at my girlfriends house, I like to tuck her into bed and say our goodnights but it was after midnight and we both agreed on having sex as long as we were quite. 5 minutes pass and we hear someone coming down the stairs and her mom just opens the door and asks me to leave. Ever since then her mom is restricting certain things between my girlfriend and I. Me not be able to go into the house to say our goodnights or tucking her in (it's become a nightly routine). I understand where her mom is coming from, I would act the same way if I were a parent. But no one has spoken a word and I don't know where to start about apologizing and making things right. I want a healthy relationship between her mom and I or else my relationship with my girlfriend may suffer.

Provide a brief overview of the text.
<bot>: Mom caught the girlfriend and I having sex, mom restricting things like Goodnights and tucking her into bed. Mom hasn't said a word about it to neither of us. Damage control needed.