That – sex once every 4.244186 days – is the good news.

The bad news is that D.C. sex is less good than in six other cities: The rate of sexual satisfaction among District dwellers is 65 percent, putting it seventh in the rankings.

Sexual frequency by city, per year:

1. Houston  101
2. Atlanta  88
3. Washington D.C.  86
4. Los Angeles  82
5. New York  80
6. Boston  79
7. Chicago  73
8. Dallas/Ft. Worth  73
9. Philadelphia  73
10. San Francisco  60

Rates of sexual satisfaction by city:

1. Atlanta  73 percent
2. New York  71
3. Houston  70
4. Dallas/Ft. Worth  67
5. Chicago  66
6. Los Angeles  66
7. Washington DC  65
8. Philadelphia  64
9. San Francisco  63
10. Boston  60

If you're feeling frisky, head over to the George Washington University's Kogan Plaza at 21st and H Sts. NW, where the "Trojan Evolve Bus" will be parked until 3 p.m. The 40-foot bus features a Trojan-sponsored lounge, a trivia game, the opportunity to take a pledge to "use a condom every time," and a student race "to put condoms correctly on plastic bananas."

If you'd prefer to eat your food, Marvin, at  2007 14th Street NW, is hosting a "Tip Out Aids" evening to fund AIDS Walk Washington team Black Gay Speak. Call Marvin at (202) 797-7171 to schedule a reservation between 5:30 and 10 p.m. this evening; mention "tip out," and your tips will be donated to the cause [via Brightest Young Things].