Have you ever been on a first date and asked if you want to be kissed? If you haven't, you're not alone. And a nationally recognized speaker is hoping to raise awareness about the consequences of not asking that one question.

"Every parent's nightmare is to think their son or daughter would be sexually assaulted. It's a nightmare and we saw happen in our family," Mike Domitrz said.

But after his sister was raped 20 years ago, Mike Domitrz realized sexual assault is something people need to talk about.

"We need to do a lot of change in our society to stop this from happening in the dating world," Dimitrz said.

To raise awareness, Dormitrz started a Web site, wrote books and speaks to students all over the country.

"All of the experimenting with dating and intimacy and hook-ups and even sexual activity is often by middle or high school or if it's not they're thinking about it so this is when they need the tools," Domitrz said.

Domitrz spoke to high schoolers at the South Dakota Army National Guard Armory Monday.

And for the high schoolers, the message is sinking in.

"The way he is presenting it is making them think about how'd they react to that situation and how might they do something differently," Advisor Patti Larsen said. 

"When you turn to a student and say say does someone have a choice on what someone does with their body? They all say yes. Well how do you give someone a choice? You ask. Well, are you asking? No. And that helps them realize why aren't I asking?" Domitrz said.

A simple question that can change lives.

Domitrz takes the issue of sexual assault across the country.