My child walked in on us being intimate…

Hi yall. A few nights ago my son (7) walked in on his dad and I having sex. It was truly embarrassing, but before you judge let me explain!

I put my children to bed, took a shower, checked on my kiddos and seen they was sleep. I went to MY ROOM, SHUT AND LOCKED MY DOOR. But apparently the latch did not latch completely because our son ending up pushing the door open. I didn’t even hear the door open because we was so into each other at that moment. What got my attention was when he said “Mama I can’t sleep.” That’s when my husband flew up, and I yanked the blanket over the rest of my body. My son didn’t give a shit though. I had to tell him 5 times to get out of my room and give me some time to come see him. 😕 When I went to talk to him he started to laugh. He asked why I was naked and being weird in my bed with dad… I tried to cover up what actually happened by saying his dad was rubbing my neck. Next thing I know he starts crying then got super angry. Which is understandable. He told me he didn’t want me to touch or look at him because he was embarrassed….

Next day… he tells his big sister (our daughter of course) what he saw. Now I’m getting grilled by the both of them about what he saw happening. I had to once again explain the same story I told him. I also explained that I’m ALWAYS naked in my room. But I’m COVERED AND in MY ROOM.

They believed me until today… it was brought up AGAIN. 🙃 I’m getting tired of this conversation if I’m being honest. And my husband doesn’t want to be intimate unless they are gone, which is never because they are always home unless it’s school. BUT then he’s working soooo… we are forced for when they are SLEEPING.

Anyways, how would you shut this down once and for all?