Bellatrix bit the inside of her lip to hold in the moan that threatened to come out with his touch. Gods but no man could ever have a touch like Rodolphus Lestrange, it left her weak in the knees.
"Do not think that you can easily distract me, Rodolphus. You're up to something and I want to know what. She does not need to be 'checked on' as I did that earlier. Don't even think about lying to me."
She ran her hand up the inside of his thigh, her fingernails pausing just short of touching his length. That would show him to think up a plan like this and put off letting her have her way with him to cater to a plan involving a Mudblood.