If you've heard the song "Let's Talk About Sex" by Salt-N-Pepa, you may recall the catchy lyrics giving us the green light to talk about "all the good things and the bad things." Somewhere between the good and the bad are awkward moments, such as telling your partner you don't feel up for sex.

The awkwardness can stem from having learned about consent as a conversation between relative strangers, possibly under a shroud of darkness and inebriation. Perhaps it's not so dramatic. Consent is for any and all lovers. But even among people who know each other well, navigating sexual needs can be challenging.

Imagine coming home after a long day and all you want to do is curl up on the couch and watch Netflix. Your partner wants to have sex, and it's the last thing on your mind. What happens if you say, "Not tonight, honey." Will your partner feel rejected? Will their feelings be hurt?

Everyone has the right to decline sex

"The ability to say no to sex is precisely what gives the 'yes' its meaning," said Tom Murray, Ph.D., a sex and relationship therapist at A Path to Wellness Integrative Psychiatry in Greensboro, North Carolina.