Tickling is fetish. People that are not “BDSM”ers can get excited by certain fetishes like for example shoes.

BDSM stands for:
[list=1][*]BD Bondage and Domination[*]DS Domination and Submission[*]SM Sadism and Masochism [/list=1]
There is many different fetishes, types of play, level of play and intensities people can get involved in. Light bondage would be anything from tying up your boyfriend to a bed post with your used stocking and or tying his eyes with your scarf to going in public with “rope bra” underneath you favourite, loose sweatshirt.

No, not only BDSMers have anal sex – vanilla couples do to.