See the pictures of Lady from Zollhaus with Lilith and David. David is the slave of both women and they treat him pretty hard. 

After this Lilith try some of the utensils from Merlins Shop. 

See Lupina and Kallisti having much fun with furs and beeing tied up.

In the first part you see sweet Silvi in chains, hogtied and with a gag.

In the second part you see Vanessa & Lia as prisoniers, with chain bondage and after that in furs and straight-jackets.