How we cite our quotes:
The Thing in the coffin writhed; and a hideous, blood-curdling screech came from the opened red lips. The body shook and quivered and twisted in wild contortions; the sharp white teeth champed together till the lips were cut, and the mouth was smeared with a crimson foam. But Arthur never faltered […] as his untrembling arm rose and fell, driving deeper and deeper the mercy-bearing stake. (16.45)
Whether or not you want to read the stake as phallic symbol, this scene is pretty sexual.
With his left hand he held both Mrs Harker's hands, keeping them away with her arms at full tension; his right hand gripped her by the back of the neck, forcing her face down on his bosom. Her white nightdress was smeared with blood, and a thin stream trickled down the man's bare breast which was shown by his torn-open dress. (21.42)
Poor Mina! She gets victimized right on the edge of her marriage bed, with her husband powerless to step in and save her. The posture of Mina and Dracula here, with him holding the back of her neck and forcing her to, um, imbibe his body fluids, is often read as a kind of rape.
Then the beautiful eyes of the fair woman open and look love, and the voluptuous mouth present to a kiss – and man is weak. (27.29)
Van Helsing explains why the Brides of Dracula at the Castle have to be dealt with – they're just too sexy! They can seduce any man. In his opinion, no woman should have that kind of power, so he's going to step up and kill them for everyone's good.