How to embody the “you get what you ask for” with women?

Obviously you can’t just ask for sex straight up (or how do yall subtly/ basically ask for sex) but I’ve had pretty good results with saying “your sexy, let me do this to you”. The problem is what’s the best way to escalate and keep that sexual tension? Pick up line on a dating app saying we need to kiss is one thing but how do i continue escalating after me and her both know we just wanna fuck? There’s also some traction going from app to number and seems to destroy tension. Maybe i just need a sexting guide, calls are too easy for me and simple, just get em horny at night, but the text shit is weird