“William do you want to be with me forever?” Angelus asks his new friend.
“Yes Angelus I do.  We could have so much fun.” William liked his new friend, he was always up for running around with the chits, robbing the rich, and besides he wasn’t bad to look at.
“Things are going to be different.”
“How so?  You aren’t going to make me go straight are you? If so you can just walk away.” William stands up to him.
“NO William, we would be forever bonded.  This doesn't mean until you get pissed off and walk away.  I’m offering you a  forever bond William.  I want to know that you know what I mean within this bond.”
“sure mate I got it.”
At that point Angelus slips in the game face “William you want to live forever?”
“yes” William doesn't flinch at the demon, its almost like he doesn’t see it.  Of course this makes Angelus want him more.  Angelus pushes him roughly up against wall and brutally kisses him, William flips around so that Angelus is against the wall and then kisses him very hard, “bring it on mate.”  William dares Angelus,  with that Angelus peels both of their clothes off.  The two men fight for control for only a few minutes until Angelus gives up, “I’ll let you have control for the last time in your life.” At that point Angelus demon sinks down.  His smooth face comes forward and they have sex against the wall with William being the dominant participant.
After they both are satisfied, Angelus turns over and faces William and tells them, "this was the last night you'll ever dominate me."
And he drains him.
When he is at the point of death Angelus looks at him and says, "William if I leave you here you'll die, if I give you my blood you live.  But if you live, you live as my childe,  there are rules that come with that.  You will be submissive to me, I am your sire, what I say goes, you will not argue and if you do argue with me you will be put back in your place.  And I am your maker William just like I can give you life,  I can take it away.  Do you agree to these terms?”
“yes want to live, Angelus turn me into a vampire like you”
Angelus is shocked, no one is ever endured or loved the demon as much as William instantly does.  Angelus slits his wrist and gives it to William, he greedily drinks until Angelus pulls this wrist back.  “I want more.” William states greedily.
“you shall have more on the setting of the sun, sleep now childe.  It is time for your body to die”
William laughs, he actually cackles.  Angelus is feeling like he finally has a true companion.  And Angelus then lays down and William follows, knowing instinctively that is what he should do.
 In the evening when William opens his eyes he is confused it is completely dark yet he can see perfectly fine.  He knows with out knowing that the door is on the wall opposite him closer to the right side than the center, he knows that Angelus is laying next to him, and he knows that there are three candlestick holders on the wall to his left.  There doesn't seem to be a sound yet he can hear footsteps blocks away, he can hear the wind blow.  It is all very surreal.  He sits up very quickly and Angelus orders, “lay down boy"
William looks over to Angelus and he can tell that Angelus only has one eye open.
“childe  lay down .”
William lays down and looks over to Angelus, "Why suddenly do you not refer to me by William?”
“William was your human name, you're no longer human and I have not named you yet.  You are no longer human there for you’re no longer William you are dead”
“No I'm not,  I am right here.”
Angelus rolls over to try and sleep some more, "In the future an outburst like that will not be tolerated, tonight is tolerated only because you do not know the rules yet.”
“You bloody wanker, why have you changed?”
Angelus rolls over and lays on top of him, “I am your sire William, and I am no longer just a friend.  I’m now your father, brother, tormentor, friend, teacher and lover.”
“ooohh, the last one I like.” William smiles.