Anal sex isn't spontaneous. You need to be prepared for it. I think toys are the way to go, and you definitely have to
want to do it. No one likes to have his or her butthole surprised by something jamming into in unexpectedly.
Anal sex is one of the most pleasurable kinds of extended sexual stimulation, in my opinion, the more you practice, the better it gets.
It can be fun alone too. With the right toys.