It's so hard to think straight when I'm around her.
Only, now more than ever, he had to think straight.
I don't know how they think straight in all that.
After all we've been through, I'm not sure either of us is thinking straight.
You guys can't think straight if you're dead on your feet.
At least they could think straight after a good night's sleep.
"I could say that once we did make love you'd never think straight again."
Things had moved too fast for her to think straight.
I'd worked myself to the point where I wasn't thinking straight.
It became hard to think straight, I wanted her so much.