Risky Text *sext*

How does this sound 
"I'm dying to feel the tips of your fingers tracing my thighs as I slowly ride your dick" 
Or maybe "I can stop thinking about how I want to suck your dick and it's distracting me"
It'll be out of the blue and I'm at work. 
One time I text him "I'm horny" and he said "why". 
So I'm really nervous lol
Give me tips or something else to say as well that you might think be better!