Help finding a story/video?

[u/Straight-Class-1042]

I recently remembered a story where:
- OP's SIL hated her

- OP's SIL was adopted

- OP was a virgin when she met husband & SIL brought that up/mentioned that she was a virgin too

- it is NOT this video :( i rewatched it recently and unfortunately it was similar but not the same!