Got BJ from Tattoo Artist

Me (M23) her (F30) and 7months pregnant. We were casually having the tattoo but she was always leaning towards my hand pressing it against her t*ts, I thought it was nothing since it happened many more times before with other. After a while the piercing girl went out for food so we were alone, the naughtier conversation started about my sex life and hers, telling me that she had 0 sex life since her pregnancy and how irritated she's about that. I tried to stay in contact with her face and her huge lips while talking but i couldn't resist my staring at my hand being a breath away from her. So about 5 minutes later she just stopped the tattoo and squeezed her t*ts on my hand. I instantly grabbed and she gave my the messiest tongue kiss I ever had. Right after that she went down there while sitting still in the chair and gave me the bj 1 ever had till we heard the outside door open, the other girl shouting in back, I instantly cum all over her mouth, i pull up and she grabbed her stuff, and the moment she opens the door it was like nothing had happened.