Theo could tell that his son had something on his mind when he went to find him. Like Stephen, however, he waited until Pansy left before giving their son his full attention.
When Stephen spoke, he had not expected the request, but was not surprised by it either. Not with times being what they were, and given the situation they were all in. He was also not surprised to hear of Rabastan's tastes as they were what he remembered from his own father. His actions at the wedding certainly spoke to the same effect.
"When it comes to legilimancy, it's Bellatrix you need to be the most careful with. She can and does use it, in fact she likes to gain information that way. Rabastan never does, at least not what I know." That of course didn't mean it wasn't of the utmost importance that Stephen learnt anyway.
"When do you want to start lessons?" he asked simply.