Will i get STD ? This is my first time.

went to a spa and had some physical interaction with a worker, and I’m a bit worried about STD risk.

There was no penetrative sex at all.

What happened:

• She touched my body (legs, etc.) with her hands (no lotion used)
• I touched her upper pubic area (no direct contact inside, just outer area right below the stomach ) - one time
• I touched her nipples, no lick
• She later touched my penis with her hand
• I also briefly touched my own penis with my 2 fingers after tocuhed upper part of her vagina
• I ejaculated, but it was into a towel (no direct contact during that) ( This was after she touched her own vagina )
• There was some hugging and touching (including butt), but again no penetration or oral
• I didn't lick her nipple but she did
• I tocued her stomach, breast, face, palm, hand
• I didn't tocuhed her vagina
• I touchd her butt, but nnot her back hole
• She has lots restrictions like no lick her nipple, she didn't come to my upper body, she was nude and hide hug her but didn't tocuhed my penis into her body.

I’m concerned because there was some genital contact via hands, but no fluids directly exchanged (as far as I know) and everything was external.

What’s the realistic STD risk from this kind of situation?
Should I get tested, and if so, when ?