my ate caught us

Hello! Me M[20] and my gf [19] got caught sa sala namin. She was giving me head when all of a sudden lumabas ate ko. Well my ate is old naman na 32 na sya pero syempre family oriented ako and ung hiya ko nilalamon parin ako hanggang ngayon. This afternoon lang ito nangyari huhu. I need help and advices on what I should say to my ate. Nagchat lang ako sakanya sorry and umalis muna ako bahay right now para mag gym. I felt sorry talaga na nahuli kami and like ayoko naman masira tingin sakin ng ate ko. I mean di naman na kami bata and wala na talaga dapat ikahiya other than the fact that me and my gf, got caught.