Just the first five stories feature a possessive Severus Snape.
I absolutely love it when Snape is possessive! *big grin* If you feel the same way, then you're going to love this story. There are two sequels to this great Snarry fanfic.
To Have and To Hold by MontanaDan
*Complete* Visions from the Dark Lord are incapacitating Harry. Snape decides to help, regardless of whether Harry wants his help. Features a possessive Snape and a sarcastic cynical Harry. Harry/Severus slash.
To Have Not by MontanaDan
COMPLETE! Sequel to To Have and To Hold. Lucius takes advantage of Harry's vulnerable emotional state, offering him a marriage of convenience to protect Harry from the media and to regain Lucius' family status. Outraged, Severus tries to win Harry back
To Have and To Keep by MontanaDan
Sequel to To Have Not. Free from Lucius and Severus, Harry gets on with his life. Many people want Harry but between his curse and his admirerers, can he find fulfillment and love? And what are Severus' chances of regaining what he lost?
Another Snape is possessive story. It's not complete, but I've noticed that the author has been good with updating.
Evernight by LilRinnieB
It's Harry's seventh year and there's a new strategy in the war against Voldemort: "Fight darkness with darkness." Anal,AU/AR,HJ,Language,Lemon,MPreg,OC,Or
This is a really great fanfic; I definitely enjoyed reading it. Severus is indeed possessive in this story.
Mistletoe by Forever then some
SSHP slash Severus’ tenacious aunt comes to town determined to meet his fiancé. The problem? Snape doesn’t have a fiancé and the only one around to play the part is Harry Potter.
This is a funny romantic Snarry fanfic that I enjoyed reading. There are two sequels to this story.
A little bit Catty by Alexander Hunter
Rewritten lovelings. After a botched spell Harry finds himself with a tail and a set of cat ears. What happens when he finds himself bonded with none other than Severus Snape? HPSS, Slashy yumyums, possible mpreg, it depends on my mood.
Catnip by Alexander Hunter
Sequel to 'A little bit Catty'. With the wedding and the birth of his child comming ever closer, Severus doesn't need anymore stress, but what happends when someone shows up? Slash, mpreg, dry humor, HPSS, need I say more?
Catscratch by Alexander Hunter
Sequel to Catnip. Asphodel and Aries are finally old enough to go to Hogwarts. As the years go by, they're brotherly love begins to go deeper. Twincest, slash, HPSS, DracoFredGeorge, LuciusOC, Ron?.