Habit Of Hearing The F*ucking Sound Of Mom Dad

I was 9-10 (M) and used to sleep with my Mom Dad on the same Bed which was normal here in our country. One midnight my sleep got disturbed by some subtle slapping sounds. I remaind still there and tried to understand what was going on. Now that slapping sound was increasing with fast repetitions. After few minutes I heared the sound of elastic band (may be that was the sound of panty) followed by whispering. I country sleep whole night by that incident and decided to enjoy that from the beginning next night.

Next night I was not going to sleep at all. I closed my eyes. After pretending I was sleeping for next few hours. I felt movement in the bed. I'm assuming that dad woke up and whispered something. Again I felt the sound of undressing the panty (which is recognizable due to that elastic sound).
Slowly the kissing sounds were audible. And the coolest thing was the sound of licking which was too strong, like a cat licking water. I could hear the moaning of Mom although she was trying her best to remain silent. And fter some time the bed got a hard shake (may be Dad folded Mom legs aggressively) and that slapping sound gradually started. Again same thing happened, that slapping sound was increasing with more repetitions.
Here i was too much hard but remained still. After that they slept. Around midnight I woke to pee.
Mom switched on the Lights for me. I went to the bathroom and came back and suddenly noticed that her panty wasl ying there on the bedside tabel. (Meaning she wasn't wearing it after s*x).

Time passed with this habit. But then one morning I woke up little early which was unusual But, Again felt that the entire bed was shaking. I got shocked that sh*t, the do morning s*x as well. Infact this time it was too aggressively that even the mom was unable to hide her moans. After they done. Dad woke up, dressed up and went for his daily morning walk. I was still acting that I'm sleeping. After 10-15 minutes Mom woke up and went to the bathroom.
I don't know what happened to me but I went to the bathroom after 2 mins and tried to look from the tiny door gaps. I got totally shocked that she was totally nude there while bathing. My mind got freezed there. To be honest i couldn't see the p*ssy clearly still i was stunned.

Hearing them midnight and early morning became my daily habit till I used to sleep with them.
Though I have few more to share but pausing here to read your opinions and all.
And sorry for my English.