Sex domains keep turning up and you are better off sticking to .coms unless it's an unusual chance like fetish.net.
within the last couple of days I've reg'd
sexhair.com
sexsciences.com
fetishjoy.com
rockcocks.com
lovepacks.com
assflicks.com
anyvice.com
buzzgirls.com
pistonsex.com
Nothing spectacular, but all useable.