@Vonalt35 pages, typically 500 words a page if single spaced--that's 17,000+ words for a chapter. In other words, it's almost a novella.
Is that entire scene completely contiguous in time, space, and action?
If not (and I find it unlikely) you look for the discontinuities and insert your breaks there.
Specifically, Any time you have a break in time (e.g., "after a few hours..."), you can insert a chapter break. Any time the characters move to a new location, you can insert a chapter break. Any time there's a change in the action (like moving from oral sex to intercourse), you can insert a chapter break.
Ideally, you end a chapter with enough of a hook to get the readers interested in the next chapter. Then at the beginning of the next chapter, you have a sentence or two or maybe a paragraph or two that "reset" where you're at.
For example:
"...I exploded in her mouth. I couldn't believe how good it felt. She grinned at me and straddled me..."
can easily become:
"...I exploded in her mouth. I couldn't believe how good it felt! I wondered how she would top it.
Chapter Break
We both sat there catching our breath. Me, because I'd just had a huge orgasm. Her, because her jaw was tired. But she wasn't done. She straddled me..."
Hope this helps,
Big Ed