In the Flesh, Portia Costa 
Twice The Pleasure, Portia Costa 
Second Time Around, Portia Costa 
No Longer Forbidden, Portia Costa 
Another Chance, Portia Costa 
A Very Personal Assistant, Portia Costa 
Ecstasy in the White Room, Portia Costa 
Ritual of the Red Chair, Portia Costa 
Discipline of the Blue Book, Portia Costa 
Chance of a Lifetime, Portia Costa 
Diamonds in the Rough, Portia Costa 
A Gentlewoman′s Quartet, Portia Costa